I'm getting more and more used to Blender version 257 now. But still having new user issues.
I just did 650 physics frames for a piece of clothing on one of my models in Blender 2.57. It went well. I named the cloth cache, and set it to save to disk cache, which it did fine. I can look on my HD and see the directory with all the properly named files contained within it. I then copied the whole directory like I used to do in 2.49 because accidents would usually destroy them and force me to have to re-generate all those files. This way I could just copy those back-up files into the original file directory and I was good to go again.
I then re-played my animated clothing segment several times and it all ran fine.
But now, for some reason there is a notification that says the cache is out of date and it won't run any more. I can't figure out what I did to make that happen, or even know what that means. The cache directory is still there, and all the frames are still in it, but I just can't get my blender file to play the cloth frames anymore. I still have that backup copy of the entire directory BTW.
How do I make the blender file that created those animation frames reload(
) and play those animation frames again? They are still there, and I still have back-up copies.
Also, as an aside, in 257 I cannot seem to either grab/move [G], or duplicate [D], or operate in any way on armature animation keyframes in the Dopesheet in any way. As soon as I try anything like that, it immediately crashes the program and I get the Windows Sorry For The Inconvenience error tile.